C#實現阿拉伯數字到大寫中文的轉換
原文地址：http://www.jb51.net/article/8061.htm
|
/// <summary> /// 金額轉為大寫金額 /// </summary> public class MoneyConvertChinese { /// <summary> /// 金額轉為大寫金額 /// </summary> /// <param name="LowerMoney"></param> /// <returns></returns> public string MoneyToChinese(string LowerMoney) { string bool IsNegative = false; // 是否是負數 if (LowerMoney.Trim().Substring(0, 1) == "-") { // 是負數則先轉為正數 LowerMoney = LowerMoney.Trim().Remove(0, 1); IsNegative = true; } string strLower = null; string strUpart = null; string strUpper = null; int // 保留兩位小數 123.489→123.49 123.4→123.4 LowerMoney = Math.Round(double.Parse(LowerMoney), 2).ToString(); if (LowerMoney.IndexOf(".") > 0) { if (LowerMoney.IndexOf(".") == LowerMoney.Length - 2) { LowerMoney = LowerMoney + "0"; } } else { LowerMoney = LowerMoney + ".00" } strLower = LowerMoney; iTemp = 1; strUpper = ""; while (iTemp <= strLower.Length) { switch (strLower.Substring(strLower.Length - iTemp, 1)) { case ".": strUpart = "圓"; break; case "0": strUpart = "零"; break; case "1": strUpart = "壹"; break; case "2": strUpart = "貳"; break; case "3": strUpart = "叄"; break; case "4": strUpart = "肆"; break; case "5": strUpart = "伍"; break; case "6": strUpart = "陸"; break; case "7": strUpart = "柒"; break; case "8": strUpart = "捌"; break; case "9": strUpart = "玖"; break; } switch (iTemp) { case 1: strUpart = strUpart + "分"; break; case 2: strUpart = strUpart + "角"; break; case 3: strUpart = strUpart + ""; break; case 4: strUpart = strUpart + ""; break; case 5: strUpart = strUpart + "拾"; break; case 6: strUpart = strUpart + "佰"; break; case 7: strUpart = strUpart + "仟"; break; case 8: strUpart = strUpart + "萬"; break; case 9: strUpart = strUpart + "拾"; break; case 10: strUpart = strUpart + "佰"; break; case 11: strUpart = strUpart + "仟"; break; case 12: strUpart = strUpart + "億"; break; case 13: strUpart = strUpart + "拾"; break; case 14: strUpart = strUpart + "佰"; break; case 15: strUpart = strUpart + "仟"; break; case 16: strUpart = strUpart + "萬"; break; default: strUpart = strUpart + ""; break; } strUpper = strUpart + strUpper; iTemp = iTemp + 1; } strUpper = strUpper.Replace("零拾", "零"); strUpper = strUpper.Replace("零佰", "零"); strUpper = strUpper.Replace("零仟", "零"); strUpper = strUpper.Replace("零零零", "零"); strUpper = strUpper.Replace("零零", "零"); strUpper = strUpper.Replace("零角零分", "整"); strUpper = strUpper.Replace("零分", "整"); strUpper = strUpper.Replace("零角", "零"); strUpper = strUpper.Replace("零億零萬零圓", "億圓"); strUpper = strUpper.Replace("億零萬零圓", "億圓"); strUpper = strUpper.Replace("零億零萬", "億"); strUpper = strUpper.Replace("零萬零圓", "萬圓"); strUpper = strUpper.Replace("零億", "億"); strUpper = strUpper.Replace("零萬", "萬"); strUpper = strUpper.Replace("零圓", "圓"); strUpper = strUpper.Replace("零零", "零"); // 對壹圓以下的金額的處理 if (strUpper.Substring(0, 1) == "圓") { strUpper = strUpper.Substring(1, strUpper.Length - 1); } if (strUpper.Substring(0, 1) == "零") { strUpper = strUpper.Substring(1, strUpper.Length - 1); } if (strUpper.Substring(0, 1) == "角") { strUpper = strUpper.Substring(1, strUpper.Length - 1); } if (strUpper.Substring(0, 1) == "分") { strUpper = strUpper.Substring(1, strUpper.Length - 1); } if (strUpper.Substring(0, 1) == "整") { strUpper = "零圓整"; } functionReturnValue = strUpper; if (IsNegative == true) { return "負" + functionReturnValue; } else { return functionReturnValue; } } } |
測試程式碼：
|
1 2 3 4 5 6 7 |
staticvoid Main(string[] args) { Console.Write("請輸入要轉成大寫的數字："); string str = Console.ReadLine(); Console.WriteLine("大寫：" + new MoneyConvertChinese().MoneyToChinese(str)); Console.ReadLine(); } |
String.Trim 方法
返回一個新字串，它相當於從當前 String 物件中移除了一組指定字元的所有前導匹配項和尾隨匹配項。
過載此成員。有關此成員的完整資訊（包括語法、用法和示例），請單擊過載列表中的相應名稱。
從當前 String 物件移除所有前導空白字元和尾部空白字元。
從當前 String 物件移除陣列中指定的一組字元的所有前導匹配項和尾部匹配項。
if (LowerMoney.Trim().Substring(0, 1) == "-")//判斷第一個符號是否為負號
// 是負數則先轉為正數
LowerMoney = LowerMoney.Trim().Remove(0, 1);
判斷第一個符號為負號之後，去掉空白之後移除第一個符號。
下面是其它網友的補充：
using System;
namespace ConsoleApp
{
/// <summary>
/// 本類實現阿拉伯數字到大寫中文的轉換
/// 該類沒有對非法數字進行判別
/// 請呼叫NumToChn方法
/// </summary>
public class NumFormat
{
public NumFormat()
{
//
// TODO: 在此處新增建構函式邏輯
//
}
// 轉換數字
private char ToNum(char x)
{
string strChnNames="零一二三四五六七八九";
string strNumNames="0123456789";
return strChnNames[strNumNames.IndexOf(x)];
}
// 轉換萬以下整數
private string ChangeInt(string x)
{
string[] strArrayLevelNames=new string[4] {"","十","百","千"};
string ret = "";
int i;
for (i=x.Length-1;i>=0;i--)
if (x[i] == '0')
ret = ToNum(x[i]) + ret;
else
ret = ToNum(x[i]) + strArrayLevelNames[x.Length-1-i] + ret;
while ((i=ret.IndexOf("零零"))!=-1)
ret=ret.Remove(i, 1);
if (ret[ret.Length-1]=='零' && ret.Length>1)
ret=ret.Remove(ret.Length-1,1);
if (ret.Length>=2 && ret.Substring(0,2)=="一十")
ret=ret.Remove(0,1);
return ret;
}
// 轉換整數
private string ToInt(string x)
{
int len = x.Length;
string ret,temp;
if (len<=4)
ret = ChangeInt(x);
else if (len<=8)
{
ret = ChangeInt(x.Substring(0,len-4)) + "萬";
temp = ChangeInt(x.Substring(len-4,4));
if (temp.IndexOf("千")==-1 && temp!="")
ret += "零" + temp;
else
ret += temp;
}
else
{
ret=ChangeInt(x.Substring(0,len-8)) + "億";
temp=ChangeInt(x.Substring(len-8,4));
if (temp.IndexOf("千")==-1 && temp!="")
ret += "零" + temp;
else
ret += temp;
ret += "萬";
temp = ChangeInt(x.Substring(len-4,4));
if (temp.IndexOf("千")==-1 && temp!="")
ret += "零" + temp;
else
ret += temp;
}
int i;
if ((i=ret.IndexOf("零萬"))!=-1)
ret = ret.Remove(i+1,1);
while ((i=ret.IndexOf("零零"))!=-1)
ret = ret.Remove(i,1);
if (ret[ret.Length-1]=='零' && ret.Length>1)
ret = ret.Remove(ret.Length-1,1);
return ret;
}
private string ToDecimal(string x)
{
string ret="";
for (int i=0;i<x.Length;i++)
ret += ToNum(x[i]);
return ret;
}
public string NumToChn(string x)
{
if (x.Length==0)
return "";
string ret="";
if (x[0]=='-')
{
ret="負";
x=x.Remove(0,1);
}
if (x[0].ToString()==".")
x="0"+x;
if (x[x.Length-1].ToString()==".")
x=x.Remove(x.Length-1,1);
if (x.IndexOf(".")>-1)
ret += ToInt(x.Substring(0,x.IndexOf(".")))+"點"+ToDecimal(x.Substring(x.IndexOf(".")+1));
else
ret += ToInt(x);
return ret;
}
}
}
測試工程
using System;
namespace ConsoleApp
{
class MainClass
{
static void Main(string[] args)
{
/*
System.Console.WriteLine("Hello, The World!");
System.Console.WriteLine("My Love!");
ClassTest ct = new ClassTest();
System.Console.WriteLine(ct.Get_Str());
*/
/*
// 過載運算子
MyVector v1 = new MyVector(5, 12);
MyVector v2 = new MyVector(4, 3);
MyVector v3 = new MyVector();
v3 = v1 + v2;
System.Console.WriteLine("{0}測試一下", v3.Length);
*/
// 轉換成大寫數字
NumFormat nf = new NumFormat();
string x;
while (true)
{
Console.Write("X=");
x = Console.ReadLine();
if (x == "") break;
Console.WriteLine("{0}={1}", x, nf.NumToChn(x));
}
}
}
}